Leo Medrano


Does Diet Coke affect your glucose?

Amy Campbell


Diet Coke and most other diet soft drinks do not contain sugar. Sugar is a type of carbohydrate, and carbohydrate is the nutrient that has the most effect on blood glucose. Most diet soft drinks are sweetened with non-nutritive or non-caloric sweeteners such as aspartame, acesulfame-K and sucralose. These sweeteners contain no calories or carbohydrate. Therefore, diet soft drinks that contain these sweeteners will not affect your blood glucose. However, other diet or sugar-free beverages may contain another type of sweetener, called a sugar alcohol. Examples of sugar alcohols include sorbitol, mannitol, and xylitol. These sweeteners do contain calories and carbs, although not as much as sugar or high-fructose corn syrup, found in regular soft drinks. So, it’s always a good idea to read the Nutrition Facts label on any food or beverage, checking the serving size and the total carbohydrate grams.

5 replies

Anonymous 2016-05-18 11:56:45 -0500 Report

Type 2. Morning BG 190. (always morning highs) 2 hours after eating a 30 carb well balanced breakfast, BG 311, 1 hr cardio then drops BG to 160. Now lunch time- Do I eat carbs knowing quite well that my numbers are going to spike again. If I do not eat carbs, my numbers do not go higher. I'm really having trouble understanding how to cope with the meals when numbers are high. I take Fornamet 1000 XR morning and evening

CountrySongbird 2013-12-04 17:57:38 -0600 Report

I am a little confused. I read that sugar alcohols do not absorb into the body so any calories and carbs that sugar alcohols have do not make any difference since it is not absorbed. I also read that because they are not absorbed is the reason you will get diarrhea when eating things with sugar alcohol.????????